Seat frame



FIG. 1 is a perspective view of a seat frame in accordance with the new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is another perspective view of the seat frame in accordance with the new design; and,

FIG. 8 is another perspective view of the seat frame in accordance with the new design.

The broken lines in the figures are for illustration purposes only and form no part of the claimed invention. 

CLAIM The ornamental design for a seat frame, as shown and described. 